Replying to How do you know how hard to spin

Next season I'm guna work on my 5 and hopefuly try a 7

i try to think of what im gunna do in the air and how im gunna take off and everything.

but i dnt understand how people know how hard they are gunna spin. when i throw 3's i can see myself doing the spin cuz its a short rotation but once i get to a five i dnt know how hard to throw my bodie and where im facing in the air

i know this sounds confusing but can anyone help me?